Safety-pin.



N. HUNSBERGER.

SAFETY PIN.

APPLICATION FILED MAY 1, 1915.

Patented July 25, 1916.

llllllllll ATTORNEYS TTNTTED STATEfi PATENT FFTEL NEVILLE HUNSBERGER, OFALDEN, PENNSYLVANIA, ASSIGNOR TO SAIWUEL STERN- BERGER, OF PHILADELPHIA,PENNSYLVANIA.

SAFETY-PIN.

Application filed May 1, 1915.

To all whom it may concern.-

Be it known that I, NEVILLE HUNsBnRcnn, a citizen of the United States,residing at Alden, in the county of Delaware and State of Pennsylvania,have invented a new and useful Safety-Pin, of which the following is aspecification.

Heretofore the guard or shield of a safety pin which is adapted toreceive and interlock the point portion of the pin proper thereof hasbeen formed with inturned lips on which are well defined shoulders onwhich a reduced neck on said portion is adapted to be seated, but saidneck is held with severity on said shoulders whereby much more thanusual force is required to displace it from said shoulders, in order toremove the pin proper from said guard or shield, so as to open thedevice preparatory to disconnecting it from the article to which it isapplied.

My invention is designed to overcome said objection and it consists inproviding the guard with inturned humps and in adapting the neck of thepin proper to be gripped or clamped by the same so as to be firmly heldin the guard or shield, while the under portion of said neck will bebelow said humps so as to be uncontrolled by the latter, whereby theholding power of the humps on the neck may be overcome by an ordinaryamount of power applied to the in proper, when the neck will readilyspread apart the humps and pass the same, causing greater ease in thedisconnecting movement of the pin proper from the shield or guard.

The invention is satisfactorily illustrated in the accompanying drawing,but the important instrumentalities thereof may be varied, as long asthey are included in the scope of the claims.

Figure 1 represents a side elevation partly broken away of a safety pinembodying my invention. Fig. 2 represents an elevation on an enlargedscale taken from the inner end of the guard or shield, and the portionadjacent thereto. Fig. 3 represents a similar elevation includingsections of the point portion of the pin proper and back member thereof.Fig. 4 represents a longitudinal section on an enlarged scale of aportion of the guard or shield, and elevation of a portion of a lipthereon together with the point portion of the pin proper in dottedlines. Fig. 5 represents a side elevation of Said Specification ofLetters Patent.

Patented Ju1y 25, iaie.

Serial No. 25,169.

point portion. Fig. 6 represents what may be termed a plan view of saidpoint portion. Fig. 7 represents a section of the guard or shield on theline wm Fig. 2. Fig. 8 represents a perspective view of a detachedportion thereof. Fig. 9 represents a partial transverse section andpartial end view of a modification. Fig. 10 represents an elevation of aportion of the pin proper with the neck thereof of modified form.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings:1 designates the pin proper of a safety pin, 2the point portion thereof, 3 the back member, 4 the coil or spring ofthe device, and 5 the guard or shield which is bent on itself to formside walls and a back, it being adapted to receive said point portion,which features broadly considered are well known.

In the sides of the point portion 2 are grooves which form the reducedneck 7 on said portion, the side faces 8 of said neck in the verticalposition of the device in which it is placed in the drawings beingsomewhat of greater depth than the thickness of the adjacent portion ofthe pin.

On the inner end of the side walls of the guard or shield are theinturned resilient lips 9, the portions of their edges intermediate oftheir ends removed from the back 10 of the guard or shield 5 beingprojected inwardly forming the humps 11 which face each other leavingbetween them the passage 12 which primarily is narrower than thethickness of the neck 7. The edges of said humps or swells are curvedfrom top to bottom so as to present crowns at or about the mediumhorizontal line of the humps.

The operation is as follows. The point portion of the pin 1 isintroduced into the guard or shield from below, when said neck 7 entersthe passage 12 and bears laterally against the humps 11 forcing themapart in lateral directions. Then the crowns of the humps owing to theresiliency of the lips press inwardly against the side faces of the neckand so hug and press-up the neck, thus controlling the latter, andconsequently the point portion of the pin in the guard or shieldpreventing improper or accidental displacement of the pin proper andopening of the device.v A portion of the neck is .be low said crowns andso the neck is not obstructed by said crowns or the swells themnal ofthe shield, when it is moved laterally therefrom and so disconnected andremoved from the shield as usual. g

The neck 7 is made tapering in cross section, the narrow end beingbelow, as most plainly shown in Fig.3, whereby when the point portion ofthe pin rises in the shield, the wide portion of the neck contacts withthe crowns of the humps and spreads apart the lips 9, fully separatingthe humps allowing the point portion to rise in the shield to fullextent when the humps press against the tapering sides of the neck abovethe bottom of the latter with an action somewhat upwardly so that theneck, and consequently the pin point will remain in its controlledposition in the guard, it being evident that this upward action orpressure of the humps on the tapering or slant sides of the neck isconstant, this being due to the crowns of the humps pressing inwardlyand so upwardly against the slant or tapering sides of the neck 7, thusserving to raise the pin 1 and hold its neck 7 against the back of theguard 5 without liability of the pin returning therefrom or opening,unless when sub jected to superior force, in which latter case the neckrides downwardly over the crowns of the humps without being .severelyresisted by said crowns, thus separating the humps, when said neck willmove freely through the passage 12 and so clear the humps when the pinmay be turned laterally from the guard for opening purposes.

It is evident that one of the humps may be dispensed with, in whichcase, the pin has its neck made with a recess on one side only, bothfeatures being in Figs. 9 and 10, so that the face 8 of said recessedside is en gaged by the single existing hump 11, while the portion ofthe pin opposite to the recess rests against the adjacent side wall 13of the guard, the neck, however, being engaged by the hump 11, andsubject to the frictional contact therewith and the lateral and upwardpressure thereon.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is 1. In a safety pin, a pin proper having onits point portion a neck, the side faces of which are tapering, and ashield composed.

tending lips, the inner edges of which have v swells thereon, said sidefaces of the neck being adapted to be engaged by said swells and pressedthereby upwardly toward said back of the shield and held resilientlythereat, the lower portion of said neck being comparatively free of'said swells.

NEVILLE HUNSBERGER.

WVitnesses:

JOHN A. "VIEDERsHEIM, N. BUssINeER.

'Gopies of this patent mayabe. obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

